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David MartinSep 10, 2025
Why is the malfunction indicator light on my Toro 77281 on?
- Mmichele70Sep 10, 2025
If the malfunction-indicator light (MIL) comes on in your Toro Lawn Mower, it could be due to several reasons. The engine may be too hot; if so, shut it off and let it cool. Old fuel in the fuel tank can also trigger the light, so use new fuel. Ensure the fuel-shutoff valve is fully open. Check and clean the air cleaner and precleaner, replacing them if necessary. Charge or replace the battery if it's not charged. Also, ensure that you are using a good 12 V battery and that it is fully charged. Check and replace any blown fuses. For issues such as incorrect or dirty fuel filters, unsecured connections to the sensors electronic-control unit (ECU) and fuel injectors, contact an Authorized Service Dealer.